Q. Why do refrigerator doors have rubber seals?

One possible cause is that the door seal is brand new or in excellent shape just as the manufacturer intended. The seals on a fridge assist to maintain a consistent temperature inside which is essential for keeping food fresh. Therefore it is a basic but somewhat significant component of modern refrigerator design. Door gaskets are the seals installed on the inside of the doors of refrigeration units. For optimal insulation and to prevent warm air from escaping cold equipment like refrigerators freezers and walk-ins have a rubber gasket that lines the whole door. It may seem like a huge undertaking to remove and replace a refrigerator gasket that isn't working properly but if breaking it down into manageable chunks one will have it done in no time.